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Brule Formation - Wikipedia

en.wikipedia.org/wiki/Brule_Formation

The Brule Formation was deposited between 34 and 30 million years ago, roughly the Rupelian (Oligocene). It is a sequence of fine grained clastic rocks ...

Geologic Formations - Badlands National Park (U.S. National Park ...

www.nps.gov/badl/learn/nature/geologicformations.htm

The tannish brown Brule Formation was deposited between 30 and 34 million years ago. As the climate began to dry and cool, the forest gave way to open ...

geographic names for members of the brule formation of the big ...

www.ajsonline.org/content/254/7/429.full.pdf

The Brulc formation as it is exposed in the Big Badlands of South Dakota is divided ... portion oi the Brule formation as it occurs in northwestern Nebraska. Oligo-.

Preliminary Biostratigraphy of the White River Group (Oligocene ...

digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1208&context=tnas

Jan 1, 1986 ... m) of terrigenous sediment. divisible into the Chadron Formation and Brule. Formation (Orella and Whitney members) on criteria similar to ...

Stratigraphy, Structure, and Vertebrate Fossils of the Oligocene ...

gsabulletin.gsapubs.org/content/81/3/831

Abstract. The Brule Formation at Slim Buttes, Harding County, South Dakota, is composed of 265 ft of Orellan (approximately medial Oligocene) and 175 ft of ...

(Eomyidae, Rodentia) from the Brule Formation, Nebraska - JStor

www.jstor.org/stable/1304359

ella Member, Brule Formation, Sioux County,. Nebraska. Discussion.-Burke ( 1934) originally as- signed two species to Paradjidaumo, P. minor. (Douglass ...

Fossils of The Badlands of South Dakota - Northern State University

www3.northern.edu/natsource/earth/Fossil1.htm

Fossils may be formed by molding, casting, or by permineralization. ... The Brule formation is made of layered sedimentary rock that formed between 34 and 29 ...

The Fossils of the White River Badlands - Home

whiteriver.weebly.com/

At the top of the Chadron Formation, these sediments shift into the Brule Formation which itself is divided into the lower Scenic Member and the Poleslide  ...

Geology of the Early Arikareean Sharps Formation on the Pine ...

journals.plos.org/plosone/article?id=10.1371/journal.pone.0047759

Oct 23, 2012 ... The original description of the Sharps Formation [3] described a strata occurring between the Monroe Creek Formation and the Brule Formation ...

Toadstool Park

www.westernpaleo.org/toadstool.php

The stratigraphy (sequence of rocks) starts with the oldest Eocene age Chadron Formation, followed by the Oligocene Brule Formation, and then the Miocene ...

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Geology of Badlands National Park - Geology of National Parks

3dparks.wr.usgs.gov

that lead to the formation of the Western Interior Seaway in the Cretaceous ... ( Eocene), the Chadron Formation (Eocene), the Brule Formation (Oligocene), and  ...

Chadron, Brule, and Arikaree Formations in North Dakota

www.dmr.nd.gov

Nov 28, 2007 ... The Brule Formation is composed of pinkish/brown to gray/green complexly interbedded claystones, calcareous mudstones, siltstones, ...

Badlands Fossils - The Virtual Fossil Museum

www.fossilmuseum.net

The Brule Formation is the uppermost formation in the White River Group. This important fossil formation was named for the Brule Indians that lived in western ...